/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.logging.config;
import java.net.URL;
import junit.framework.Test;
import junit.framework.TestCase;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.PathableClassLoader;
import org.apache.commons.logging.PathableTestSuite;
/**
* Tests that verify that the process of configuring logging on startup
* works correctly by selecting the file with the highest priority.
* <p>
* This test sets up a classpath where:
* <ul>
* <li> first file found has priority=20
* <li> second file found has priority=10
* </ul>
* The result should be that the first file is used.
*/
public class FirstPriorityConfigTestCase extends TestCase {
// ------------------------------------------- JUnit Infrastructure Methods
/**
* Return the tests included in this test suite.
*/
public static Test suite() throws Exception {
Class thisClass = FirstPriorityConfigTestCase.class;
// Determine the URL to this .class file, so that we can then
// append the priority dirs to it. For tidiness, load this
// class through a dummy loader though this is not absolutely
// necessary...
PathableClassLoader dummy = new PathableClassLoader(null);
dummy.useExplicitLoader("junit.", Test.class.getClassLoader());
dummy.addLogicalLib("testclasses");
dummy.addLogicalLib("commons-logging");
String thisClassPath = thisClass.getName().replace('.', '/') + ".class";
URL baseUrl = dummy.findResource(thisClassPath);
// Now set up the desired classloader hierarchy. We'll put JCL
// in the container path, the testcase in a webapp path, and
// both config files into the webapp path too.
PathableClassLoader containerLoader = new PathableClassLoader(null);
containerLoader.useExplicitLoader("junit.", Test.class.getClassLoader());
containerLoader.addLogicalLib("commons-logging");
PathableClassLoader webappLoader = new PathableClassLoader(containerLoader);
webappLoader.addLogicalLib("testclasses");
URL pri20URL = new URL(baseUrl, "priority20/");
webappLoader.addURL(pri20URL);
URL pri10URL = new URL(baseUrl, "priority10/");
webappLoader.addURL(pri10URL);
// load the test class via webapp loader, and use the webapp loader
// as the tccl loader too.
Class testClass = webappLoader.loadClass(thisClass.getName());
return new PathableTestSuite(testClass, webappLoader);
}
/**
* Set up instance variables required by this test case.
*/
public void setUp() throws Exception {
LogFactory.releaseAll();
}
/**
* Tear down instance variables required by this test case.
*/
public void tearDown() {
LogFactory.releaseAll();
}
// ----------------------------------------------------------- Test Methods
/**
* Verify that the config file being used is the one containing
* the desired configId value.
*/
public void testPriority() throws Exception {
LogFactory instance = LogFactory.getFactory();
ClassLoader thisClassLoader = this.getClass().getClassLoader();
ClassLoader lfClassLoader = instance.getClass().getClassLoader();
ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
// context classloader should be thisClassLoader
assertEquals(thisClassLoader, contextClassLoader);
// lfClassLoader should be parent of this classloader
assertEquals(lfClassLoader, thisClassLoader.getParent());
assertEquals(PathableClassLoader.class.getName(),
lfClassLoader.getClass().getName());
String id = (String) instance.getAttribute("configId");
assertEquals("Correct config file loaded", "priority20", id );
}
}